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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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4af9710649
If non-LPAE kernel is booted up on a machine with 64-bit PCI resources, PCI controller probe fails with: PCI host bridge /pcie@10000000 ranges: IO 0x3eff0000..0x3effffff -> 0x00000000 MEM 0x10000000..0x3efeffff -> 0x10000000 MEM 0x8000000000..0xffffffffff -> 0x8000000000 pci-host-generic 3f000000.pcie: resource collision: [mem 0x00000000-0xffffffff] conflicts with /pl011@9000000 [mem 0x09000000-0x09000fff] pci-host-generic: probe of 3f000000.pcie failed with error -16 This happens because res->start assignment in of_pci_range_to_resource() truncates the upper part of the address, because res->start is of phys_addr_t type, which is 32-bit on non-LPAE kernels. This patch adds explicit recognition of 64-bit resources, preventing from potential problems when e. g. 0x8000001234 would be converted to 0x00001234. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Signed-off-by: Rob Herring <robh@kernel.org> |
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| .. | ||
| unittest-data | ||
| address.c | ||
| base.c | ||
| device.c | ||
| dynamic.c | ||
| fdt_address.c | ||
| fdt.c | ||
| irq.c | ||
| Kconfig | ||
| Makefile | ||
| of_mdio.c | ||
| of_mtd.c | ||
| of_net.c | ||
| of_pci_irq.c | ||
| of_pci.c | ||
| of_private.h | ||
| of_reserved_mem.c | ||
| overlay.c | ||
| pdt.c | ||
| platform.c | ||
| resolver.c | ||
| unittest.c | ||